Generate Client Proxy: Conversion of DTD to WSDL w/o XI

Hi,

although I do not think this is an XI problem. Maybe somebody can help me.

I want to generate an abap client proxy. For generating I have to choose an WSDL file or using the XI repository. But we have not installed XI and the only web service definition file I have is an DTD-File. Does somebody know how I can convert a DTD file to WSDL or in which way I can use this file for generating a client proxy?